Order book API

Sell quotes already include gas costs

For sell orders (kind: "sell"), the /quote response's quote.buyAmount is the quoted output after estimated network costs (gas) and the applicable protocol fee have been deducted. Do not subtract these costs again or compare this amount directly with another provider's before-gas output. Compare quotes on the same fee basis.

See Displaying and Comparing Quotes for a worked comparison and calculations using the API response.